i have a laptop with a dead battery can i run it from the battery

**didiet78** · 07-26-2006, 11:34 PM

Built dc-dc powersuply( boost converter), i've seen it in elektor magz, 12V (8-16V) to 19V 5A max (depend on heatsink) 10pk. Use lm3842

**joshcxcb** · 07-30-2006, 02:58 PM

thanks but wow, i sold this forever ago, maybe this thread will help someone else

**Jahntassa** · 07-30-2006, 04:33 PM

Originally Posted by RawsonDR

Hibernate uses a lot less power than standy, for the reason you mentioned (powering memory). But it is still entirely possible that the computer provides +5vsb power during hibernate - this power is usually supplied even when the computer is off.

I've never seen a Laptop put out voltage on the USB ports when Off / Hibernated. Desktops, sure.

**FC3S** · 07-30-2006, 06:09 PM

my laptop does NOT put out power when in hibernate, or standby for that matter

usb is completely shut off, which is the way i like it :T

hmm, my desktop shuts all power to the usb as well, but for some mobo's that might be an option i suppose, to keep the usb's running, i wouldnt know, dont have any mobos with any options like that, lol